Safety Warning

DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.

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HOMESERVICE MANUALSCHEVROLET2006COBALT SS, 4D SEDAN, STANDARDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 735 (HEATING, VENTILATION AND AIR CONDITIONING)CLIMATE CONTROLEXPANSION VALVE REPLACEMENT

2006 Chevrolet Cobalt SS, 4D Sedan, Standard

Expansion Valve Replacement

2006 Chevrolet Cobalt SS, 4D Sedan, StandardSECTION Expansion Valve Replacement

WARNING: This page is about a different car, the 2011 Honda Insight and 2010 Honda Insight. However, it is still accessible from the selected car via links, so may be relevant.

Do steps 1 to 8 of the Evaporator Core Replacement (see EVAPORATOR CORE REPLACEMENT ).
Remove the bolts, O-rings (A), and the expansion valve (B) from the pipe (C).

Fig 1: Bolts With Torque Specifications, O-Rings And Expansion Valve With Pipe
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Install the expansion valve in the reverse order of removal, and note these items:
- Replace the O-rings with new ones at each fitting, and apply a thin coat of refrigerant oil before installing them. Be sure to use the correct O-rings for HFC-134a (R-134a) to avoid leakage.
- Immediately after using the oil, reinstall the cap on the container, and seal it to avoid moisture absorption.
- Do not spill the refrigerant oil on the vehicle; it may damage the paint; if the refrigerant oil contacts the paint, wash it off immediately.
- Make sure that there is no air leakage.
- Charge the system (see SYSTEM CHARGING ).

RENDER: 1.0x

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

• You smell fuel, burning insulation, or see smoke.
• Brakes feel soft, pull hard to one side, or make grinding noises.
• The engine overheats, stalls repeatedly, or misfires under load.
• You are missing required tools, torque specs, or safe lifting equipment.
• You are not confident in the next step or safety outcome.